The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2021
Filed:
Aug. 23, 2019
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A light source apparatus according to an aspect includes a light source that outputs first light and second light, wavelength converter that contains phosphor and converts first light into fluorescence, and a light combiner that combines second light with fluorescence and outputs the resultant combined light. Wavelength converter has a first end surface and a second end surface and a side surface. Light combiner has a first surface and a second surface and a third surface. First end surface of the wavelength converter faces the first surface of the light combiner. First light enters the wavelength converter via the side surface, and the fluorescence exits out of the wavelength converter via the first end surface. Fluorescence enters the light combiner via the first surface, the second light enters the light combiner via the third surface, and the combined light exits out of the light combiner via the second surface.